前言稳定常数k_i是描述溶液平衡体系的重要参数之一,对于多种多元酸混合体系中各组分的测定,无论采用何种计算分析方法一般都必须已知各稳定常数值。因此,建立一个通用准确的求测各级稳定常数的方法是十分必要的,目前通常采用的方法是利用络合生成函数n的定义和概念,将已知浓度C的多元酸化为稳定常数k_i或累积稳定常数β_i的线性函数,利用多 Preface The stability constant k_i is one of the important parameters to describe the solution equilibrium system. For the determination of each component in a variety of mixed acid systems, the stability constants must be known no matter what kind of calculation and analysis method is used. Therefore, it is necessary to establish a general and accurate method for determining the stability constants at various levels. Currently, the commonly used method is to utilize the definition and concept of the complex generation function n to acidify the polybasic acid of a known concentration C to a constant k_i or Cumulative stability constant β_i linear function, the use of more